SW6 component calculation, spherical head calculation – how is the thickness of the head reinforcement section determined?
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When calculating the spherical head, the data for the reinforcement sections were not entered; only the thickness of the cylinder section welded to the head was used.
It would be better if you generated a calculation sheet and took a look at it. The calculation for spherical head closures is somewhat similar to that for conical head closures in the software. The software only indicates that a thickness of 22 is sufficient at this pressure level, but it does not provide a comparison with the reinforced sections; you need to check this in the calculation documents and select the larger value.
The calculation results show that the calculated thickness of the reinforcement section is 28, but the overall conclusion is still that it meets the requirements.
I waited for a long time, but the image didn’t appear. The thickness of the reinforcement section and the thickness of the head are two separate parameters. SW6 determines whether you are qualified or not based on the result of the head thickness; however, both the thickness of the reinforcement section (for the cylinder and the head) must meet the calculated requirements, including those regarding the length and thickness of the reinforcement section.
I’m sorry, the image cannot be loaded. That is, the conclusion in SW6 is incorrect, as the crown head does not have a reinforcement section, and its thickness does not reach the thickness required for such a reinforcement section as calculated
In the calculation of spherical head closures, the required thickness of the reinforcement section is determined based on the stresses and pressures that may be exerted at the weld joint between the cylinder and the head. The actual head thickness of 22 mm may also meet the design standards and safety requirements. This may be because other compensatory measures are taken in practice, such as using materials of higher strength or adding reinforcement bars, to ensure the overall safety and stability of the structure. Furthermore, the selection of standards and safety factors may also provide some flexibility in the design. In practical engineering applications, it is recommended to consult the relevant design and safety specifications in detail to ensure that all parameters meet the requirements. .